import numpy as np

file = np.loadtxt('D:\AI\pointnet\data\stanford_indoor3d\conferenceRoom_1.txt')

arr = np.zeros(file.shape[0])

rs = np.c_[file, arr]

print(rs.shape)

np.savetxt('D:\AI\pointnet\data\stanford_indoor3d\conferenceRoom_1.txt', rs, '%.3f')
